UltraCleaner.biz is a browser hijacker that promotes the rogue anti-spyware parasite, System Security (also knwon as SystemSecurity, System Security 2009). The browser hijacker infiltrates a system via the use of the Vundo Trojan application. What Vundo does is it will download and install the browser hijacker UltraCleaner.biz, as well as other parasites. Once UltraCleaner.biz is installed on a system, all pages you see will be redirected to that address. A fake security scan will be launched, but it is FAKE! The only option the use will be given, once the scan is done, is to purchase, download and install the rogue software. The downloaded file might vary in name, but but bear in mind that it is in itself a rogue anti-spyware downloader trojan. So you will get more pop-up messages, fake alerts - promoting various useless products and “security center” pop-ups that will ask you to spend money. Remove UltraCleaner.biz and System Security as soon as possible!